Method for sealing and removing gangue by inclined large-diameter borehole in coal mine
A large-diameter, coal mine technology, applied in mining equipment, earth-moving drilling, sealing/sealing, etc., can solve problems such as easy entry of stones, sealing complex gas drainage pipelines, etc., to achieve improved effect, simple process and structure simple effect
Active Publication Date: 2022-07-29
山西工程技术学院
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0010] In order to solve the problem in the prior art that the oblique large-diameter drilling is complicated to seal and the gas drainage pipeline is easy to enter stones, the present invention provides a coal mine inclined large-diameter drilling sealing and gangue removal method, which can reduce the inclination The complexity of large-diameter drilling and sealing can prevent goaf gangue from entering the drainage pipeline, ensure the quality of gas drilling and sealing, and improve the effect of gas drainage
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0038] like Figure 1-Figure 6 As shown, a method for sealing and removing gangue by inclined large-diameter drilling in a coal mine of the present invention includes the following steps:
[0039] (1) Install the sealing device 1 on the first gas extraction pipe 2;
[0040] (2) Insert the first gas extraction pipe 2 into the inclined large-diameter borehole 53;
[0041] (3) Activate the sealing device 1 to seal the annular gap between the fir...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A method for sealing holes and removing gangue in inclined large-diameter boreholes in coal mines, comprising the following steps: inserting a first gas extraction pipe equipped with a sealing device into the inclined large-diameter hole; starting the sealing device to remove the first gas extraction pipe Seal the annular gap between the inclined large-diameter borehole; connect the gangue removal device between the outlet end of the first gas extraction pipe and the inlet end of the second gas extraction pipe, and then connect the second gas extraction pipe Go to the underground gas extraction system of the coal mine; perform gas extraction in inclined large-diameter boreholes. During the gas extraction process, the gangue is temporarily stored in the gangue removal device; after the gangue is stored in the gangue removal device to a certain height, turn off the extraction pump , open the gangue removal device, and take out the gangue. The invention has simple process, simple device structure and simple operation, greatly improves the effect of gas extraction, and has important popularization value.
Description
technical field [0001] The invention relates to the technical field of drilling and sealing of coal mine gas drainage, in particular to a method for sealing and removing gangue by drilling inclined large-diameter drilling in coal mines. Background technique [0002] Inclined large-diameter drilling is a new technology for gas drainage in goafs developed in recent years, such as figure 1 and figure 2 As shown, the two sides of the coal mining face 50 are the air inlet road 49 and the return air road 51 respectively, that is, a gas control road 52 is set beside the return air road 51 at the coal mining face 50, and the gas control road 52 returns to the The wind tunnel 51 is drilled into the inclined large-diameter hole 53, and the upper corner gas is extracted from the connecting road of the return air road 51 by the inclined large-diameter hole 53. figure 2 54 is the goaf, 55 is the protection coal pillar, 56 is the coal seam, and 57 is the gas drainage system. [0003]...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): E21F7/00E21B33/12
CPCE21F7/00E21B33/12
Inventor 李全中付宏伟郑文贤王凯刘旭张贵方乔士远周学鹏陈妍徐国林张新越陈珂寇占洋
Owner 山西工程技术学院